the sandbox it's an incredibly useful tool to test strats and stuff, but i don't know why the timer increase during the match instead of decreasing like in the arena environment.

Most of us use time based modules, some of them relies on "time left" condition, the problem is that there's no time left in sandbox mode, thus it's impossible to test ai properly, unless you specify double conditions such as "less than 1mn left" OR "more than 4 minutes passed" to avoid the sandbox problem.

Of course we could solve the problem by only using "time passed" conditions instead of "time left", but i think it would be better if sandbox mechanics could mirror the actual arena conditions.